Bird deflector and air replacement system technical field

a technology of air replacement system and deflector, which is applied in the direction of combustion-air/fuel-air treatment, separation process, filtration separation, etc., can solve the problems of engine loss of power, over $7 million damage, and relatively primitive practical solutions, and achieve the effect of improving the efficiency of the replacement air flow

Inactive Publication Date: 2011-11-08
MORAN JOHN PATRICK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0049]Still another object of the invention is to provide the possibility of enhanced efficiency of th...

Problems solved by technology

The engine failed and shrapnel from it destroyed the no.
The pilot landed the plane safely, but its damage was over $7 million.
The engine lost all power and was destroyed.
To-date, the only practical solutions are relatively primitive: scaring birds from runways by recordings of wild animals and propane cannons that create loud startling noises; and plotting flight paths that avoid heavy migration routes.
These tests might not be rigorous enough, however, considering that the largest Canada geese weigh 14 pounds.
Bird strike hazards are ...

Method used

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  • Bird deflector and air replacement system technical field
  • Bird deflector and air replacement system technical field
  • Bird deflector and air replacement system technical field

Examples

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Embodiment Construction

[0071]Referring now to the drawings in greater detail, FIG. 1 illustrates a fragmentary jet engine 10 having a nacelle 12 and inlet cowl 13, with an opening 14 around which a combination bird deflector and air replacement structure 15 is either permanently or detachably mounted. A generally conically shaped bird deflector 16 includes bars 18 (FIG. 2) extending outwardly from a central nose 20 in an equally spaced relationship. A plurality of bar segments 22 having progressively shorter lengths are secured between the adjacent outwardly extending bars 18. For larger deflectors 16, the segments 22 are progressively farther apart as they approach the nose 20.

[0072]The cross-sectional shapes of the various bars 18 and 22 may be one of round, four-sided, or triangular, with pointed edge directed outwardly. The various shapes may affect air flow differently at engine full power.

[0073]Suitable fasteners represented at 24 in FIG. 1 may consist of a full round or other shaped flanges 26 to c...

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Abstract

A bird deflector and air replacement system for a jet engine, the bird deflector being conical or arcuate in shape as formed by suitable longitudinal and lateral interconnected bars, and the air replacement apparatus being one of a frustum or a selectively perforated tube or a modified cowl with cooperating external spaced-apart channels or openings formed therearound for directing additional air into the mainstream of the jet engine inlet. The system may be manufactured as an aftermarket add-on, or it may be manufactured as original cowl equipment for respective jet engine models.

Description

TECHNICAL FIELD[0001]This invention relates generally to jet engines' protection from bird strikes, and, more particularly, to a bird deflector and air replacement system for attachment to the frontal surface of a jet engine. Without such external protection, there have been many instances in the past where bird strikes have caused jet engines to fail.BACKGROUND OF THE INVENTION[0002]Bird Strike Committee USA was formed in 1991 to promote collection and analysis of accurate wildlife-strike data; promote development of new technologies to reduce wildlife hazards; facilitate exchange of information; and act as a liaison to similar organizations in other countries. It is directed by an eight-person steering committee comprised of two members each from: Federal Aviation Administration; Department of Defense; U.S. Department of Agriculture; and the aviation-industry Wildlife Hazards Working Group, with associate members from 16 other interested groups, including aircraft and aircraft-eng...

Claims

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Application Information

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IPC IPC(8): B64D33/02B01D46/00B64C1/14
CPCB64D33/02F02C7/055B64D2033/022F05D2260/607Y02T50/675Y02T50/60F02C7/05
Inventor MORAN, JOHN PATRICK
Owner MORAN JOHN PATRICK
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